Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Routines for control of the AK4113 via I2C/4-wire serial interface |
| 3 | * IEC958 (S/PDIF) receiver by Asahi Kasei |
| 4 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
| 5 | * Copyright (c) by Pavel Hofman <pavel.hofman@ivitera.com> |
| 6 | * |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include <linux/slab.h> |
| 25 | #include <linux/delay.h> |
Paul Gortmaker | da155d5 | 2011-07-15 12:38:28 -0400 | [diff] [blame] | 26 | #include <linux/module.h> |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 27 | #include <sound/core.h> |
| 28 | #include <sound/control.h> |
| 29 | #include <sound/pcm.h> |
| 30 | #include <sound/ak4113.h> |
| 31 | #include <sound/asoundef.h> |
| 32 | #include <sound/info.h> |
| 33 | |
| 34 | MODULE_AUTHOR("Pavel Hofman <pavel.hofman@ivitera.com>"); |
| 35 | MODULE_DESCRIPTION("AK4113 IEC958 (S/PDIF) receiver by Asahi Kasei"); |
| 36 | MODULE_LICENSE("GPL"); |
| 37 | |
| 38 | #define AK4113_ADDR 0x00 /* fixed address */ |
| 39 | |
| 40 | static void ak4113_stats(struct work_struct *work); |
| 41 | static void ak4113_init_regs(struct ak4113 *chip); |
| 42 | |
| 43 | |
| 44 | static void reg_write(struct ak4113 *ak4113, unsigned char reg, |
| 45 | unsigned char val) |
| 46 | { |
| 47 | ak4113->write(ak4113->private_data, reg, val); |
| 48 | if (reg < sizeof(ak4113->regmap)) |
| 49 | ak4113->regmap[reg] = val; |
| 50 | } |
| 51 | |
| 52 | static inline unsigned char reg_read(struct ak4113 *ak4113, unsigned char reg) |
| 53 | { |
| 54 | return ak4113->read(ak4113->private_data, reg); |
| 55 | } |
| 56 | |
| 57 | static void snd_ak4113_free(struct ak4113 *chip) |
| 58 | { |
Takashi Iwai | 4161b45 | 2015-01-13 10:53:20 +0100 | [diff] [blame] | 59 | atomic_inc(&chip->wq_processing); /* don't schedule new work */ |
Tejun Heo | 5b84ba2 | 2010-12-11 17:51:26 +0100 | [diff] [blame] | 60 | cancel_delayed_work_sync(&chip->work); |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 61 | kfree(chip); |
| 62 | } |
| 63 | |
| 64 | static int snd_ak4113_dev_free(struct snd_device *device) |
| 65 | { |
| 66 | struct ak4113 *chip = device->device_data; |
| 67 | snd_ak4113_free(chip); |
| 68 | return 0; |
| 69 | } |
| 70 | |
| 71 | int snd_ak4113_create(struct snd_card *card, ak4113_read_t *read, |
Dan Carpenter | f11947c7 | 2010-04-02 14:29:23 +0300 | [diff] [blame] | 72 | ak4113_write_t *write, const unsigned char *pgm, |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 73 | void *private_data, struct ak4113 **r_ak4113) |
| 74 | { |
| 75 | struct ak4113 *chip; |
Dan Carpenter | 034f90b | 2015-03-23 12:34:46 +0300 | [diff] [blame] | 76 | int err; |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 77 | unsigned char reg; |
| 78 | static struct snd_device_ops ops = { |
| 79 | .dev_free = snd_ak4113_dev_free, |
| 80 | }; |
| 81 | |
| 82 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
| 83 | if (chip == NULL) |
| 84 | return -ENOMEM; |
| 85 | spin_lock_init(&chip->lock); |
| 86 | chip->card = card; |
| 87 | chip->read = read; |
| 88 | chip->write = write; |
| 89 | chip->private_data = private_data; |
| 90 | INIT_DELAYED_WORK(&chip->work, ak4113_stats); |
Takashi Iwai | 4161b45 | 2015-01-13 10:53:20 +0100 | [diff] [blame] | 91 | atomic_set(&chip->wq_processing, 0); |
Takashi Iwai | 1781e78 | 2015-01-16 13:03:28 +0100 | [diff] [blame] | 92 | mutex_init(&chip->reinit_mutex); |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 93 | |
| 94 | for (reg = 0; reg < AK4113_WRITABLE_REGS ; reg++) |
| 95 | chip->regmap[reg] = pgm[reg]; |
| 96 | ak4113_init_regs(chip); |
| 97 | |
| 98 | chip->rcs0 = reg_read(chip, AK4113_REG_RCS0) & ~(AK4113_QINT | |
| 99 | AK4113_CINT | AK4113_STC); |
| 100 | chip->rcs1 = reg_read(chip, AK4113_REG_RCS1); |
| 101 | chip->rcs2 = reg_read(chip, AK4113_REG_RCS2); |
Takashi Iwai | 483eb06 | 2014-02-04 11:18:23 +0100 | [diff] [blame] | 102 | err = snd_device_new(card, SNDRV_DEV_CODEC, chip, &ops); |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 103 | if (err < 0) |
| 104 | goto __fail; |
| 105 | |
| 106 | if (r_ak4113) |
| 107 | *r_ak4113 = chip; |
| 108 | return 0; |
| 109 | |
| 110 | __fail: |
| 111 | snd_ak4113_free(chip); |
Dan Carpenter | 034f90b | 2015-03-23 12:34:46 +0300 | [diff] [blame] | 112 | return err; |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 113 | } |
| 114 | EXPORT_SYMBOL_GPL(snd_ak4113_create); |
| 115 | |
| 116 | void snd_ak4113_reg_write(struct ak4113 *chip, unsigned char reg, |
| 117 | unsigned char mask, unsigned char val) |
| 118 | { |
| 119 | if (reg >= AK4113_WRITABLE_REGS) |
| 120 | return; |
| 121 | reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val); |
| 122 | } |
| 123 | EXPORT_SYMBOL_GPL(snd_ak4113_reg_write); |
| 124 | |
| 125 | static void ak4113_init_regs(struct ak4113 *chip) |
| 126 | { |
| 127 | unsigned char old = chip->regmap[AK4113_REG_PWRDN], reg; |
| 128 | |
| 129 | /* bring the chip to reset state and powerdown state */ |
| 130 | reg_write(chip, AK4113_REG_PWRDN, old & ~(AK4113_RST|AK4113_PWN)); |
| 131 | udelay(200); |
| 132 | /* release reset, but leave powerdown */ |
| 133 | reg_write(chip, AK4113_REG_PWRDN, (old | AK4113_RST) & ~AK4113_PWN); |
| 134 | udelay(200); |
| 135 | for (reg = 1; reg < AK4113_WRITABLE_REGS; reg++) |
| 136 | reg_write(chip, reg, chip->regmap[reg]); |
| 137 | /* release powerdown, everything is initialized now */ |
| 138 | reg_write(chip, AK4113_REG_PWRDN, old | AK4113_RST | AK4113_PWN); |
| 139 | } |
| 140 | |
| 141 | void snd_ak4113_reinit(struct ak4113 *chip) |
| 142 | { |
Takashi Iwai | 4161b45 | 2015-01-13 10:53:20 +0100 | [diff] [blame] | 143 | if (atomic_inc_return(&chip->wq_processing) == 1) |
| 144 | cancel_delayed_work_sync(&chip->work); |
Takashi Iwai | 1781e78 | 2015-01-16 13:03:28 +0100 | [diff] [blame] | 145 | mutex_lock(&chip->reinit_mutex); |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 146 | ak4113_init_regs(chip); |
Takashi Iwai | 1781e78 | 2015-01-16 13:03:28 +0100 | [diff] [blame] | 147 | mutex_unlock(&chip->reinit_mutex); |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 148 | /* bring up statistics / event queing */ |
Takashi Iwai | 4161b45 | 2015-01-13 10:53:20 +0100 | [diff] [blame] | 149 | if (atomic_dec_and_test(&chip->wq_processing)) |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 150 | schedule_delayed_work(&chip->work, HZ / 10); |
| 151 | } |
| 152 | EXPORT_SYMBOL_GPL(snd_ak4113_reinit); |
| 153 | |
| 154 | static unsigned int external_rate(unsigned char rcs1) |
| 155 | { |
| 156 | switch (rcs1 & (AK4113_FS0|AK4113_FS1|AK4113_FS2|AK4113_FS3)) { |
| 157 | case AK4113_FS_8000HZ: |
| 158 | return 8000; |
| 159 | case AK4113_FS_11025HZ: |
| 160 | return 11025; |
| 161 | case AK4113_FS_16000HZ: |
| 162 | return 16000; |
| 163 | case AK4113_FS_22050HZ: |
| 164 | return 22050; |
| 165 | case AK4113_FS_24000HZ: |
| 166 | return 24000; |
| 167 | case AK4113_FS_32000HZ: |
| 168 | return 32000; |
| 169 | case AK4113_FS_44100HZ: |
| 170 | return 44100; |
| 171 | case AK4113_FS_48000HZ: |
| 172 | return 48000; |
| 173 | case AK4113_FS_64000HZ: |
| 174 | return 64000; |
| 175 | case AK4113_FS_88200HZ: |
| 176 | return 88200; |
| 177 | case AK4113_FS_96000HZ: |
| 178 | return 96000; |
| 179 | case AK4113_FS_176400HZ: |
| 180 | return 176400; |
| 181 | case AK4113_FS_192000HZ: |
| 182 | return 192000; |
| 183 | default: |
| 184 | return 0; |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | static int snd_ak4113_in_error_info(struct snd_kcontrol *kcontrol, |
| 189 | struct snd_ctl_elem_info *uinfo) |
| 190 | { |
| 191 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 192 | uinfo->count = 1; |
| 193 | uinfo->value.integer.min = 0; |
| 194 | uinfo->value.integer.max = LONG_MAX; |
| 195 | return 0; |
| 196 | } |
| 197 | |
| 198 | static int snd_ak4113_in_error_get(struct snd_kcontrol *kcontrol, |
| 199 | struct snd_ctl_elem_value *ucontrol) |
| 200 | { |
| 201 | struct ak4113 *chip = snd_kcontrol_chip(kcontrol); |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 202 | |
| 203 | spin_lock_irq(&chip->lock); |
Takashi Iwai | 239480a | 2017-05-12 10:47:16 +0200 | [diff] [blame] | 204 | ucontrol->value.integer.value[0] = |
| 205 | chip->errors[kcontrol->private_value]; |
| 206 | chip->errors[kcontrol->private_value] = 0; |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 207 | spin_unlock_irq(&chip->lock); |
| 208 | return 0; |
| 209 | } |
| 210 | |
| 211 | #define snd_ak4113_in_bit_info snd_ctl_boolean_mono_info |
| 212 | |
| 213 | static int snd_ak4113_in_bit_get(struct snd_kcontrol *kcontrol, |
| 214 | struct snd_ctl_elem_value *ucontrol) |
| 215 | { |
| 216 | struct ak4113 *chip = snd_kcontrol_chip(kcontrol); |
| 217 | unsigned char reg = kcontrol->private_value & 0xff; |
| 218 | unsigned char bit = (kcontrol->private_value >> 8) & 0xff; |
| 219 | unsigned char inv = (kcontrol->private_value >> 31) & 1; |
| 220 | |
| 221 | ucontrol->value.integer.value[0] = |
| 222 | ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv; |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | static int snd_ak4113_rx_info(struct snd_kcontrol *kcontrol, |
| 227 | struct snd_ctl_elem_info *uinfo) |
| 228 | { |
| 229 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 230 | uinfo->count = 1; |
| 231 | uinfo->value.integer.min = 0; |
| 232 | uinfo->value.integer.max = 5; |
| 233 | return 0; |
| 234 | } |
| 235 | |
| 236 | static int snd_ak4113_rx_get(struct snd_kcontrol *kcontrol, |
| 237 | struct snd_ctl_elem_value *ucontrol) |
| 238 | { |
| 239 | struct ak4113 *chip = snd_kcontrol_chip(kcontrol); |
| 240 | |
| 241 | ucontrol->value.integer.value[0] = |
| 242 | (AK4113_IPS(chip->regmap[AK4113_REG_IO1])); |
| 243 | return 0; |
| 244 | } |
| 245 | |
| 246 | static int snd_ak4113_rx_put(struct snd_kcontrol *kcontrol, |
| 247 | struct snd_ctl_elem_value *ucontrol) |
| 248 | { |
| 249 | struct ak4113 *chip = snd_kcontrol_chip(kcontrol); |
| 250 | int change; |
| 251 | u8 old_val; |
| 252 | |
| 253 | spin_lock_irq(&chip->lock); |
| 254 | old_val = chip->regmap[AK4113_REG_IO1]; |
| 255 | change = ucontrol->value.integer.value[0] != AK4113_IPS(old_val); |
| 256 | if (change) |
| 257 | reg_write(chip, AK4113_REG_IO1, |
| 258 | (old_val & (~AK4113_IPS(0xff))) | |
| 259 | (AK4113_IPS(ucontrol->value.integer.value[0]))); |
| 260 | spin_unlock_irq(&chip->lock); |
| 261 | return change; |
| 262 | } |
| 263 | |
| 264 | static int snd_ak4113_rate_info(struct snd_kcontrol *kcontrol, |
| 265 | struct snd_ctl_elem_info *uinfo) |
| 266 | { |
| 267 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 268 | uinfo->count = 1; |
| 269 | uinfo->value.integer.min = 0; |
| 270 | uinfo->value.integer.max = 192000; |
| 271 | return 0; |
| 272 | } |
| 273 | |
| 274 | static int snd_ak4113_rate_get(struct snd_kcontrol *kcontrol, |
| 275 | struct snd_ctl_elem_value *ucontrol) |
| 276 | { |
| 277 | struct ak4113 *chip = snd_kcontrol_chip(kcontrol); |
| 278 | |
| 279 | ucontrol->value.integer.value[0] = external_rate(reg_read(chip, |
| 280 | AK4113_REG_RCS1)); |
| 281 | return 0; |
| 282 | } |
| 283 | |
| 284 | static int snd_ak4113_spdif_info(struct snd_kcontrol *kcontrol, |
| 285 | struct snd_ctl_elem_info *uinfo) |
| 286 | { |
| 287 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; |
| 288 | uinfo->count = 1; |
| 289 | return 0; |
| 290 | } |
| 291 | |
| 292 | static int snd_ak4113_spdif_get(struct snd_kcontrol *kcontrol, |
| 293 | struct snd_ctl_elem_value *ucontrol) |
| 294 | { |
| 295 | struct ak4113 *chip = snd_kcontrol_chip(kcontrol); |
| 296 | unsigned i; |
| 297 | |
| 298 | for (i = 0; i < AK4113_REG_RXCSB_SIZE; i++) |
| 299 | ucontrol->value.iec958.status[i] = reg_read(chip, |
| 300 | AK4113_REG_RXCSB0 + i); |
| 301 | return 0; |
| 302 | } |
| 303 | |
| 304 | static int snd_ak4113_spdif_mask_info(struct snd_kcontrol *kcontrol, |
| 305 | struct snd_ctl_elem_info *uinfo) |
| 306 | { |
| 307 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; |
| 308 | uinfo->count = 1; |
| 309 | return 0; |
| 310 | } |
| 311 | |
| 312 | static int snd_ak4113_spdif_mask_get(struct snd_kcontrol *kcontrol, |
| 313 | struct snd_ctl_elem_value *ucontrol) |
| 314 | { |
| 315 | memset(ucontrol->value.iec958.status, 0xff, AK4113_REG_RXCSB_SIZE); |
| 316 | return 0; |
| 317 | } |
| 318 | |
| 319 | static int snd_ak4113_spdif_pinfo(struct snd_kcontrol *kcontrol, |
| 320 | struct snd_ctl_elem_info *uinfo) |
| 321 | { |
| 322 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 323 | uinfo->value.integer.min = 0; |
| 324 | uinfo->value.integer.max = 0xffff; |
| 325 | uinfo->count = 4; |
| 326 | return 0; |
| 327 | } |
| 328 | |
| 329 | static int snd_ak4113_spdif_pget(struct snd_kcontrol *kcontrol, |
| 330 | struct snd_ctl_elem_value *ucontrol) |
| 331 | { |
| 332 | struct ak4113 *chip = snd_kcontrol_chip(kcontrol); |
| 333 | unsigned short tmp; |
| 334 | |
| 335 | ucontrol->value.integer.value[0] = 0xf8f2; |
| 336 | ucontrol->value.integer.value[1] = 0x4e1f; |
| 337 | tmp = reg_read(chip, AK4113_REG_Pc0) | |
| 338 | (reg_read(chip, AK4113_REG_Pc1) << 8); |
| 339 | ucontrol->value.integer.value[2] = tmp; |
| 340 | tmp = reg_read(chip, AK4113_REG_Pd0) | |
| 341 | (reg_read(chip, AK4113_REG_Pd1) << 8); |
| 342 | ucontrol->value.integer.value[3] = tmp; |
| 343 | return 0; |
| 344 | } |
| 345 | |
| 346 | static int snd_ak4113_spdif_qinfo(struct snd_kcontrol *kcontrol, |
| 347 | struct snd_ctl_elem_info *uinfo) |
| 348 | { |
| 349 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; |
| 350 | uinfo->count = AK4113_REG_QSUB_SIZE; |
| 351 | return 0; |
| 352 | } |
| 353 | |
| 354 | static int snd_ak4113_spdif_qget(struct snd_kcontrol *kcontrol, |
| 355 | struct snd_ctl_elem_value *ucontrol) |
| 356 | { |
| 357 | struct ak4113 *chip = snd_kcontrol_chip(kcontrol); |
| 358 | unsigned i; |
| 359 | |
| 360 | for (i = 0; i < AK4113_REG_QSUB_SIZE; i++) |
| 361 | ucontrol->value.bytes.data[i] = reg_read(chip, |
| 362 | AK4113_REG_QSUB_ADDR + i); |
| 363 | return 0; |
| 364 | } |
| 365 | |
| 366 | /* Don't forget to change AK4113_CONTROLS define!!! */ |
| 367 | static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = { |
| 368 | { |
| 369 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 370 | .name = "IEC958 Parity Errors", |
| 371 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 372 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 373 | .info = snd_ak4113_in_error_info, |
| 374 | .get = snd_ak4113_in_error_get, |
Takashi Iwai | 239480a | 2017-05-12 10:47:16 +0200 | [diff] [blame] | 375 | .private_value = AK4113_PARITY_ERRORS, |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 376 | }, |
| 377 | { |
| 378 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 379 | .name = "IEC958 V-Bit Errors", |
| 380 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 381 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 382 | .info = snd_ak4113_in_error_info, |
| 383 | .get = snd_ak4113_in_error_get, |
Takashi Iwai | 239480a | 2017-05-12 10:47:16 +0200 | [diff] [blame] | 384 | .private_value = AK4113_V_BIT_ERRORS, |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 385 | }, |
| 386 | { |
| 387 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 388 | .name = "IEC958 C-CRC Errors", |
| 389 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 390 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 391 | .info = snd_ak4113_in_error_info, |
| 392 | .get = snd_ak4113_in_error_get, |
Takashi Iwai | 239480a | 2017-05-12 10:47:16 +0200 | [diff] [blame] | 393 | .private_value = AK4113_CCRC_ERRORS, |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 394 | }, |
| 395 | { |
| 396 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 397 | .name = "IEC958 Q-CRC Errors", |
| 398 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 399 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 400 | .info = snd_ak4113_in_error_info, |
| 401 | .get = snd_ak4113_in_error_get, |
Takashi Iwai | 239480a | 2017-05-12 10:47:16 +0200 | [diff] [blame] | 402 | .private_value = AK4113_QCRC_ERRORS, |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 403 | }, |
| 404 | { |
| 405 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 406 | .name = "IEC958 External Rate", |
| 407 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 408 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 409 | .info = snd_ak4113_rate_info, |
| 410 | .get = snd_ak4113_rate_get, |
| 411 | }, |
| 412 | { |
| 413 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 414 | .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, MASK), |
| 415 | .access = SNDRV_CTL_ELEM_ACCESS_READ, |
| 416 | .info = snd_ak4113_spdif_mask_info, |
| 417 | .get = snd_ak4113_spdif_mask_get, |
| 418 | }, |
| 419 | { |
| 420 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 421 | .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT), |
| 422 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 423 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 424 | .info = snd_ak4113_spdif_info, |
| 425 | .get = snd_ak4113_spdif_get, |
| 426 | }, |
| 427 | { |
| 428 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
Masanari Iida | ec8f53f | 2012-11-02 00:28:50 +0900 | [diff] [blame] | 429 | .name = "IEC958 Preamble Capture Default", |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 430 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 431 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 432 | .info = snd_ak4113_spdif_pinfo, |
| 433 | .get = snd_ak4113_spdif_pget, |
| 434 | }, |
| 435 | { |
| 436 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 437 | .name = "IEC958 Q-subcode Capture Default", |
| 438 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 439 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 440 | .info = snd_ak4113_spdif_qinfo, |
| 441 | .get = snd_ak4113_spdif_qget, |
| 442 | }, |
| 443 | { |
| 444 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 445 | .name = "IEC958 Audio", |
| 446 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 447 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 448 | .info = snd_ak4113_in_bit_info, |
| 449 | .get = snd_ak4113_in_bit_get, |
| 450 | .private_value = (1<<31) | (1<<8) | AK4113_REG_RCS0, |
| 451 | }, |
| 452 | { |
| 453 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 454 | .name = "IEC958 Non-PCM Bitstream", |
| 455 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 456 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 457 | .info = snd_ak4113_in_bit_info, |
| 458 | .get = snd_ak4113_in_bit_get, |
| 459 | .private_value = (0<<8) | AK4113_REG_RCS1, |
| 460 | }, |
| 461 | { |
| 462 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 463 | .name = "IEC958 DTS Bitstream", |
| 464 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 465 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |
| 466 | .info = snd_ak4113_in_bit_info, |
| 467 | .get = snd_ak4113_in_bit_get, |
| 468 | .private_value = (1<<8) | AK4113_REG_RCS1, |
| 469 | }, |
| 470 | { |
| 471 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
| 472 | .name = "AK4113 Input Select", |
| 473 | .access = SNDRV_CTL_ELEM_ACCESS_READ | |
| 474 | SNDRV_CTL_ELEM_ACCESS_WRITE, |
| 475 | .info = snd_ak4113_rx_info, |
| 476 | .get = snd_ak4113_rx_get, |
| 477 | .put = snd_ak4113_rx_put, |
| 478 | } |
| 479 | }; |
| 480 | |
| 481 | static void snd_ak4113_proc_regs_read(struct snd_info_entry *entry, |
| 482 | struct snd_info_buffer *buffer) |
| 483 | { |
| 484 | struct ak4113 *ak4113 = entry->private_data; |
| 485 | int reg, val; |
| 486 | /* all ak4113 registers 0x00 - 0x1c */ |
| 487 | for (reg = 0; reg < 0x1d; reg++) { |
| 488 | val = reg_read(ak4113, reg); |
| 489 | snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val); |
| 490 | } |
| 491 | } |
| 492 | |
| 493 | static void snd_ak4113_proc_init(struct ak4113 *ak4113) |
| 494 | { |
| 495 | struct snd_info_entry *entry; |
| 496 | if (!snd_card_proc_new(ak4113->card, "ak4113", &entry)) |
| 497 | snd_info_set_text_ops(entry, ak4113, snd_ak4113_proc_regs_read); |
| 498 | } |
| 499 | |
| 500 | int snd_ak4113_build(struct ak4113 *ak4113, |
| 501 | struct snd_pcm_substream *cap_substream) |
| 502 | { |
| 503 | struct snd_kcontrol *kctl; |
| 504 | unsigned int idx; |
| 505 | int err; |
| 506 | |
| 507 | if (snd_BUG_ON(!cap_substream)) |
| 508 | return -EINVAL; |
| 509 | ak4113->substream = cap_substream; |
| 510 | for (idx = 0; idx < AK4113_CONTROLS; idx++) { |
| 511 | kctl = snd_ctl_new1(&snd_ak4113_iec958_controls[idx], ak4113); |
| 512 | if (kctl == NULL) |
| 513 | return -ENOMEM; |
| 514 | kctl->id.device = cap_substream->pcm->device; |
| 515 | kctl->id.subdevice = cap_substream->number; |
| 516 | err = snd_ctl_add(ak4113->card, kctl); |
| 517 | if (err < 0) |
| 518 | return err; |
| 519 | ak4113->kctls[idx] = kctl; |
| 520 | } |
| 521 | snd_ak4113_proc_init(ak4113); |
| 522 | /* trigger workq */ |
| 523 | schedule_delayed_work(&ak4113->work, HZ / 10); |
| 524 | return 0; |
| 525 | } |
| 526 | EXPORT_SYMBOL_GPL(snd_ak4113_build); |
| 527 | |
| 528 | int snd_ak4113_external_rate(struct ak4113 *ak4113) |
| 529 | { |
| 530 | unsigned char rcs1; |
| 531 | |
| 532 | rcs1 = reg_read(ak4113, AK4113_REG_RCS1); |
| 533 | return external_rate(rcs1); |
| 534 | } |
| 535 | EXPORT_SYMBOL_GPL(snd_ak4113_external_rate); |
| 536 | |
| 537 | int snd_ak4113_check_rate_and_errors(struct ak4113 *ak4113, unsigned int flags) |
| 538 | { |
| 539 | struct snd_pcm_runtime *runtime = |
| 540 | ak4113->substream ? ak4113->substream->runtime : NULL; |
| 541 | unsigned long _flags; |
| 542 | int res = 0; |
| 543 | unsigned char rcs0, rcs1, rcs2; |
| 544 | unsigned char c0, c1; |
| 545 | |
| 546 | rcs1 = reg_read(ak4113, AK4113_REG_RCS1); |
| 547 | if (flags & AK4113_CHECK_NO_STAT) |
| 548 | goto __rate; |
| 549 | rcs0 = reg_read(ak4113, AK4113_REG_RCS0); |
| 550 | rcs2 = reg_read(ak4113, AK4113_REG_RCS2); |
| 551 | spin_lock_irqsave(&ak4113->lock, _flags); |
| 552 | if (rcs0 & AK4113_PAR) |
Takashi Iwai | 239480a | 2017-05-12 10:47:16 +0200 | [diff] [blame] | 553 | ak4113->errors[AK4113_PARITY_ERRORS]++; |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 554 | if (rcs0 & AK4113_V) |
Takashi Iwai | 239480a | 2017-05-12 10:47:16 +0200 | [diff] [blame] | 555 | ak4113->errors[AK4113_V_BIT_ERRORS]++; |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 556 | if (rcs2 & AK4113_CCRC) |
Takashi Iwai | 239480a | 2017-05-12 10:47:16 +0200 | [diff] [blame] | 557 | ak4113->errors[AK4113_CCRC_ERRORS]++; |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 558 | if (rcs2 & AK4113_QCRC) |
Takashi Iwai | 239480a | 2017-05-12 10:47:16 +0200 | [diff] [blame] | 559 | ak4113->errors[AK4113_QCRC_ERRORS]++; |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 560 | c0 = (ak4113->rcs0 & (AK4113_QINT | AK4113_CINT | AK4113_STC | |
| 561 | AK4113_AUDION | AK4113_AUTO | AK4113_UNLCK)) ^ |
| 562 | (rcs0 & (AK4113_QINT | AK4113_CINT | AK4113_STC | |
| 563 | AK4113_AUDION | AK4113_AUTO | AK4113_UNLCK)); |
| 564 | c1 = (ak4113->rcs1 & (AK4113_DTSCD | AK4113_NPCM | AK4113_PEM | |
| 565 | AK4113_DAT | 0xf0)) ^ |
| 566 | (rcs1 & (AK4113_DTSCD | AK4113_NPCM | AK4113_PEM | |
| 567 | AK4113_DAT | 0xf0)); |
| 568 | ak4113->rcs0 = rcs0 & ~(AK4113_QINT | AK4113_CINT | AK4113_STC); |
| 569 | ak4113->rcs1 = rcs1; |
| 570 | ak4113->rcs2 = rcs2; |
| 571 | spin_unlock_irqrestore(&ak4113->lock, _flags); |
| 572 | |
| 573 | if (rcs0 & AK4113_PAR) |
| 574 | snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 575 | &ak4113->kctls[0]->id); |
| 576 | if (rcs0 & AK4113_V) |
| 577 | snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 578 | &ak4113->kctls[1]->id); |
| 579 | if (rcs2 & AK4113_CCRC) |
| 580 | snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 581 | &ak4113->kctls[2]->id); |
| 582 | if (rcs2 & AK4113_QCRC) |
| 583 | snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 584 | &ak4113->kctls[3]->id); |
| 585 | |
| 586 | /* rate change */ |
| 587 | if (c1 & 0xf0) |
| 588 | snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 589 | &ak4113->kctls[4]->id); |
| 590 | |
| 591 | if ((c1 & AK4113_PEM) | (c0 & AK4113_CINT)) |
| 592 | snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 593 | &ak4113->kctls[6]->id); |
| 594 | if (c0 & AK4113_QINT) |
| 595 | snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 596 | &ak4113->kctls[8]->id); |
| 597 | |
| 598 | if (c0 & AK4113_AUDION) |
| 599 | snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 600 | &ak4113->kctls[9]->id); |
| 601 | if (c1 & AK4113_NPCM) |
| 602 | snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 603 | &ak4113->kctls[10]->id); |
| 604 | if (c1 & AK4113_DTSCD) |
| 605 | snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, |
| 606 | &ak4113->kctls[11]->id); |
| 607 | |
| 608 | if (ak4113->change_callback && (c0 | c1) != 0) |
| 609 | ak4113->change_callback(ak4113, c0, c1); |
| 610 | |
| 611 | __rate: |
| 612 | /* compare rate */ |
| 613 | res = external_rate(rcs1); |
| 614 | if (!(flags & AK4113_CHECK_NO_RATE) && runtime && |
| 615 | (runtime->rate != res)) { |
| 616 | snd_pcm_stream_lock_irqsave(ak4113->substream, _flags); |
| 617 | if (snd_pcm_running(ak4113->substream)) { |
| 618 | /*printk(KERN_DEBUG "rate changed (%i <- %i)\n", |
| 619 | * runtime->rate, res); */ |
| 620 | snd_pcm_stop(ak4113->substream, |
| 621 | SNDRV_PCM_STATE_DRAINING); |
| 622 | wake_up(&runtime->sleep); |
| 623 | res = 1; |
| 624 | } |
| 625 | snd_pcm_stream_unlock_irqrestore(ak4113->substream, _flags); |
| 626 | } |
| 627 | return res; |
| 628 | } |
| 629 | EXPORT_SYMBOL_GPL(snd_ak4113_check_rate_and_errors); |
| 630 | |
| 631 | static void ak4113_stats(struct work_struct *work) |
| 632 | { |
| 633 | struct ak4113 *chip = container_of(work, struct ak4113, work.work); |
| 634 | |
Takashi Iwai | 4161b45 | 2015-01-13 10:53:20 +0100 | [diff] [blame] | 635 | if (atomic_inc_return(&chip->wq_processing) == 1) |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 636 | snd_ak4113_check_rate_and_errors(chip, chip->check_flags); |
| 637 | |
Takashi Iwai | 4161b45 | 2015-01-13 10:53:20 +0100 | [diff] [blame] | 638 | if (atomic_dec_and_test(&chip->wq_processing)) |
| 639 | schedule_delayed_work(&chip->work, HZ / 10); |
Pavel Hofman | 42cfa27 | 2009-09-16 22:25:37 +0200 | [diff] [blame] | 640 | } |
Takashi Iwai | 1293617 | 2015-01-13 11:24:08 +0100 | [diff] [blame] | 641 | |
| 642 | #ifdef CONFIG_PM |
| 643 | void snd_ak4113_suspend(struct ak4113 *chip) |
| 644 | { |
| 645 | atomic_inc(&chip->wq_processing); /* don't schedule new work */ |
| 646 | cancel_delayed_work_sync(&chip->work); |
| 647 | } |
| 648 | EXPORT_SYMBOL(snd_ak4113_suspend); |
| 649 | |
| 650 | void snd_ak4113_resume(struct ak4113 *chip) |
| 651 | { |
| 652 | atomic_dec(&chip->wq_processing); |
| 653 | snd_ak4113_reinit(chip); |
| 654 | } |
| 655 | EXPORT_SYMBOL(snd_ak4113_resume); |
| 656 | #endif |